WASHINGTON — The Democratic Party put Supreme Court nominee Elena Kagan front and center Thursday on an e-mail appeal to raise funds and sign up supporters for President Barack Obama's agenda.

"Kagan for Justice," reads a bumper sticker-style headline on a website where supporters are asked to sign their names and give their e-mail addresses, then taken to a site where they are asked to donate money to the Democratic National Committee.

Also topping the site is a picture of a smiling Kagan, who just concluded three days of hearings before the Senate Judiciary Committee at which she pledged repeatedly to cast aside any political allegiances if confirmed, and decide cases solely on the basis of the Constitution and the law.

The appeal comes from Donna Brazile, one of Democrats' top voter registration officials.

"The Democratic Party is pushing back to ensure that this incredible woman gets a fair hearing, but we must also show that public support for Kagan is overwhelming," Brazile writes.

The message comes as the Judiciary panel is wrapping up a week's worth of hearings on Kagan, who's on track for confirmation after a smooth performance before senators.

At the White House, Press Secretary Robert Gibbs predicted Kagan, Obama's choice to succeed retiring Justice John Paul Stevens, would be approved by the Judiciary panel and confirmed by the full Senate.

Republicans say she'd have trouble putting aside her political leanings and ruling in an impartial way. The GOP called several military witnesses Thursday who said Kagan's decision as dean of Harvard Law School to bar Pentagon recruiters from the campus career services office over the ban on openly gay soldiers made her unfit to be a justice.

Retired Army Capt. Flagg Youngblood compared her treatment of recruiters to racial segregation, and said it reflected "a condescension towards American rule of law." A vote for Kagan, Youngblood said, was "a vote to harm the interests of our military."

Kagan defended her actions during this week's hearings, saying she had tried to comply with Harvard's anti-discrimination policy without jeopardizing the school's eligibility for federal funds under a law that required equal access for military recruiters. Under her arrangement, recruiters had to work through a student-run veterans' organization.

Democrats called Lilly Ledbetter — the central figure in a 2007 Supreme Court decision saying discriminatory pay actions by companies had to be addressed immediately, or not at all — to urge support for Kagan. Ledbetter said the court needs more liberal justices.

"My case shows that who gets appointed to the Supreme Court really makes a difference. If one more person like Justice (Ruth Bader) Ginsburg or Justice Stevens were on the Court — one more person who understands what it's like for ordinary people living in the real world — then my case would have turned out differently," Ledbetter said, referring to two justices regarded as leaders of the court's liberal wing.